Design and development of Ti-Zr-Hf-Nb-Ta-Mo high-entropy alloys for metallic biomaterials
Design and development of Ti-Zr-Hf-Nb-Ta-Mo high-entropy alloys for metallic biomaterials
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DOI：
10.1016/j.matdes.2021.109548
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发表时间：
2021-02-15
影响因子：
8.4
通讯作者：
Nakano, Takayoshi
中科院分区：
文献类型：
--
作者：
Iijima, Yuuka;Nagase, Takeshi;Nakano, Takayoshi
应用经验合金参数（包括Mo当量）、预测基态图和热力学计算，设计并开发了用于金属生物材料的贵重非等原子Ti-Zr-Hf-Nb-Ta-Mo高熵合金。发现Moeq和价电子浓度（VEC）参数对涉及生物中熵合金和生物heas中BCC结构形成的合金设计是有用的。最后，我们找到了Ti28.33Zr28.33Hf28.33Nb6.74Ta6.74Mo1.55 (at。BioHEA具有与CP-Ti相当的生物相容性，比CP-Ti更高的机械强度，以及可观的室温拉伸延展性。目前的研究结果为新的Ti-Zr-Hf-Nb-Ta-Mo BioHEAs的开发铺平了道路，并适用于另一种BioHEA合金体系。(c) 2021提交人。Elsevier Ltd.出版。这是一篇基于CC BY许可（http://creativecommons.org/licenses/by/4.0/）的开放获取文章。
Applying empirical alloy parameters (including Mo equivalent), the predicted ground state diagram, and thermodynamic calculations, noble nonequiatomic Ti-Zr-Hf-Nb-Ta-Mo high-entropy alloys for metallic biomaterials (BioHEAs) were designed and newly developed. It is found that the Moeq and valence electron concentration (VEC) parameters are useful for alloy design involving BCC structure formation in bio medium-entropy alloys and BioHEAs. Finally, we find a Ti28.33Zr28.33Hf28.33Nb6.74Ta6.74Mo1.55 (at.%) BioHEA that exhibits biocompatibility comparable to that of CP-Ti, higher mechanical strength than CP-Ti, and an appreciable room-temperature tensile ductility. The current findings pave the way for new Ti-Zr-Hf-Nb-Ta-Mo BioHEAs development and are applicable for another BioHEA alloys system. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).